发明名称 |
FLAPPER VALVE AND METHOD |
摘要 |
A flapper valve with magnetic field hold open arrangement including a housing; a flapper pivotally mounted to the housing; and a magnet housing slidably mounted to the housing such that a magnetic field generating configuration of the magnet housing is movable between a position where it is capable of holding the flapper in an open position and where it is incapable of holding the flapper in an open position. A method for holding open a flapper of a flapper valve. |
申请公布号 |
WO2011047163(A2) |
申请公布日期 |
2011.04.21 |
申请号 |
WO2010US52686 |
申请日期 |
2010.10.14 |
申请人 |
BAKER HUGHES INCORPORATED;XU, YANG |
发明人 |
XU, YANG |
分类号 |
E21B34/10;E21B34/12;F16K1/18 |
主分类号 |
E21B34/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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